SLIP ON GROOVE COUPLING WITH MULTIPLE SEALING GASKET

• US 20150369405A1
• Filed: 08/27/2015
• Published: 12/24/2015
• Est. Priority Date: 06/30/2008
• Status: Active Grant

• Current Assignee: ASC Engineered Solutions LLC
• Original Assignee: Mueller International LLC (Mueller Water Products Incorporated)
• Inventors: Vandal, Peter Joseph, Compton, Douglas
• Granted Patent: US 10,047,885 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B23P 19/04 for assembling or disassembling parts
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: F16J 15/022 characterised by structure or material
• CPC Class Codes: F16L 17/04 with longitudinally split or divided sleeve
• CPC Class Codes: F16L 21/02 with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings F16L21/06, F16L21/08 take precedence ; sealing ring with radial ribs F16L17/025; sealing ring with axial lips F16L17/03; if adjustability is essential F16L27/00
• CPC Class Codes: F16L 21/03 placed in the socket before connection F16L21/022, F16L21/025 take precedence
• CPC Class Codes: F16L 21/06 with a divided sleeve or ring clamping around the pipe-ends flanged joints F16L23/00; couplings of the quick-acting type F16L37/00
• CPC Class Codes: F16L 21/065 tightened by tangentially-arranged threaded pins
• CPC Class Codes: Y10T 137/0447 Including joint or coupling
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49872 Confining elastic part in socket

Abstract

Couplings and gaskets are disclosed. Couplings may include an upper housing, a lower housing, at least one fastening device coupling the upper housing to the lower housing, and a gasket positioned within the upper and lower housings, the gasket including two primary seals and a rib protruding from an inner surface of the gasket and between the two primary seals.

Claims

1. A coupling for joining a first pipe and a second pipe, the coupling comprising:

an upper housing;

a lower housing;

at least one fastening device coupling the upper housing to the lower housing; and

a gasket positioned within the upper and lower housings, the gasket including two primary seals, each primary seal formed on an outer edge of the gasket,

the coupling adapted to slide over the first pipe such that the at least a portion of the first pipe extends axially beyond each outer edge of the gasket while the coupling remains in an assembled state, the coupling further adapted to join and seal the first pipe and the second pipe while the coupling remains in an assembled state.

2. The coupling of claim 1, wherein an inner diameter of the upper housing and an inner diameter of the lower housing are adapted to fit within a groove defined on a one of the first pipe and the second pipe when the at least one fastening device is in a tightened condition.

3. The coupling of claim 1, wherein an inner diameter of the gasket is larger than an outer diameter of the first pipe and the second pipe when the at least one fastening device is in an untightened condition.

4. The coupling of claim 1, wherein each primary seal includes a gripping extension.

5. The coupling of claim 1, wherein each primary seal has a rounded interior end.

6. The coupling of claim 1, wherein the gasket includes a rib protruding from an inner surface of the gasket and between the two primary seals, the rib having a sealing surface defining a first axially outer edge and a second axially outer edge.

7. The coupling of claim 6, wherein the rib further defines a cylindrical section facing radially inward, the cylindrical section being cylindrical when the at least one fastening device is in an untightened condition, the cylindrical section defined between the first axially outer edge and the second axially outer edge.

8. The coupling of claim 7, wherein the cylindrical section covers a seam defined between the first pipe and the second pipe when the first pipe and the second pipe are joined end-to-end.

9. A gasket for sealing a first pipe and a second pipe, the gasket comprising:

a first primary seal; and

a second primary seal, each of the first primary seal and the second primary seal formed on an outer edge of the gasket,

the gasket adapted to slide over the first pipe end such that at least a portion of the first pipe extends axially beyond each edge of the gasket.

10. The gasket of claim 9, wherein each of the first primary seal and the second primary seal has a rounded interior end which angles toward an outer surface of the gasket.

11. The gasket of claim 9, wherein an inner diameter of the gasket is larger than an outer diameter of the first pipe and the second pipe when the gasket is in an uncompressed condition.

12. The gasket of claim 9, wherein a one of the first primary seal and the second primary seal includes a gripping extension shaped to grab the end of the first pipe as the gasket slides over the end of the first pipe.

13. The gasket of claim 9, wherein each of the first primary seal and the second primary seal has a rounded interior end.

14. The gasket of claim 9, further comprising a rib protruding from an inner surface of the gasket and between the first primary seal and the second primary seal, the rib having a sealing surface defining a first axially outer edge and a second axially outer edge.

15. A pipe coupling system comprising:

a first pipe having a first outer diameter and a first pipe end;

a second pipe having a second outer diameter and a second pipe end; and

a coupling, the coupling including an upper housing, a lower housing connected to the upper housing, and a gasket, the gasket including a first primary seal and a second primary seal, the coupling adapted to slide over the first pipe such that the at least a portion of the first pipe extends axially beyond each outer edge of the gasket while the coupling remains in an assembled state, the coupling further adapted to join and seal the first pipe and the second pipe while the coupling remains in an assembled state.

16. The system of claim 15, wherein:

the first pipe includes a first groove defined in an outer surface of the first pipe proximate to the first pipe end;

the second pipe includes a second grooved defined in an outer surface of the second pipe proximate to the second pipe end;

a first portion of the upper housing and a first portion of the lower housing fit into the first groove; and

a second portion of the upper housing and a second portion of the lower housing fit into the second groove.

17. The system of claim 15, wherein the coupling is adapted to slide over the first pipe end such that the first pipe end extends axially beyond an outer edge of the coupling when the first pipe extends through the coupling.

18. The system of claim 15, further comprising a rib protruding from an inner surface of the gasket and between the first primary seal and the second primary seal, the rib contactable with the exterior surface of the first pipe and the exterior surface of the second pipe when the first pipe and the second pipe are joined end-to-end.

19. The system of claim 15, wherein each of the first primary seal and the second primary seal has a rounded interior end.

20. The system of claim 15, wherein an inner diameter of the gasket is larger than both of the first outer diameter of the first pipe and the second outer diameter of the second pipe when the gasket is in an uncompressed condition.